package servlet;

import pojo.Dept;
import service.DeptService;
import service.impl.DeptServiceImpl;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;
@WebServlet(urlPatterns = "/dept")
public class DeptServlet extends HttpServlet {
    DeptService deptService = new DeptServiceImpl();

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        doPost(req, resp);
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        DeptService deptService = new DeptServiceImpl();
        req.setCharacterEncoding("utf-8");
        String action = req.getParameter("action");
        if ("list".equals(action)) {
            String dname = req.getParameter("dname");
            Dept condition = new Dept(dname);
            List<Dept> depts = deptService.findAll(condition);
            req.setAttribute("depts", depts);
            req.setAttribute("condition", condition);
            req.getRequestDispatcher("/list.jsp").forward(req, resp);
        } else if ("add".equals(action)) {
            String dname = req.getParameter("dname");
            int result = deptService.addDept(new Dept(dname));
            if (result > 0) {
                resp.sendRedirect("dept?action=list");
            } else {
                resp.sendRedirect("addDept.jsp");
            }
        }else if ("delete".equals(action)){
            String sid=req.getParameter("id");
            Integer id=Integer.parseInt(sid);
            int result=deptService.deleteDeptById(id);
            if(result>0){
                resp.sendRedirect("dept?action=list");
            }
        }else if("toupdate".equals(action)){
            String sid=req.getParameter("id");
            Integer id=Integer.parseInt(sid);
            Dept dept=deptService.findById(id);
            req.setAttribute("dept",dept);
            req.getRequestDispatcher("update.jsp").forward(req,resp);
        }else if("update".equals(action)){
            String sid=req.getParameter("id");
            Integer id=Integer.parseInt(sid);
            String dname=req.getParameter("dname");
            int result=deptService.updateDept(new Dept(id,dname));
            if(result>0){
                resp.sendRedirect("dept?action=list");
            }else {
                resp.sendRedirect("addDept.jsp");
            }
        }
    }
}
